Question

ПОМОГИТЕ С ФИЗИКОЙ СРОООЧНО!!!

Answer 1

R34=R3*R4/(R3+R4)=6*12/(6+12)=4 Ом
R234=4/2=2 Ом
R=R1+R234=1.6+2=3.6 Ом
I1=U/R=18/3.6=5 A
U234=I1*R234=5*2=10 B
I2=U234/R2=10/4=2.5 A
I3=U234/R3=10/6=1.7 A
I4=I1-(I2+I3)=5-(2.5+1.7)=0.8 A
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